> Actually, I think it would make the kernel (negligibly) faster to bump
quoted text
> f_pos before the vfs_write() call.  Unless fget_light sets fput_needed
> or the write doesn't complete cleanly, you won't have to touch the
> file table entry again after vfs_write() returns.  You can adjust

Any number of things can cause a short write to occur, and rewinding the 
file position after the fact is just as bad.  A sane app has to either 
serialise the writes itself or use a thread safe API like pwrite().

		-ben
-- 
"Time is of no importance, Mr. President, only life is important."
Don't Email: <zyntrop@kvack.org>.
-
unsubscribe notice
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/